On 10/10/2019 12:25, Tomi Valkeinen wrote:
Hi Andrzej,
On 10/10/2019 12:19, Andrzej Hajda wrote:
On 24.09.2019 15:17, Tomi Valkeinen wrote:
max_tu_symbol was programmed to TU_SIZE_RECOMMENDED - 1, which is not
what the spec says. The spec says:
roundup ((input active video bandwidth in bytes/output active video
bandwidth in bytes) * tu_size)
It is not quite clear what the above means, but calculating
max_tu_symbol = (input Bps / output Bps) * tu_size seems to work and
fixes the issues seen.
This fixes artifacts in some videomodes (e.g. 1024x768@60 on 2-lanes &
1.62Gbps was pretty bad for me).
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
Queued to fixes.
If you didn't push this yet, can you drop it for now? This works for all
the video modes I have tested, but as I mention above, the calculation
is really not quite clear to me.
I've sent queries to Toshiba about how to calculate this, and I'm hoping
to get a reply soon.
If you did push it already, that's fine too, as it does improve things.
Just for the record, got a reply from Toshiba, and the patch is correct.
Tomi
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